diff --git a/core/includes/form.inc b/core/includes/form.inc
index 234e640..128cfcd 100644
--- a/core/includes/form.inc
+++ b/core/includes/form.inc
@@ -2782,10 +2782,10 @@ function theme_form_element($variables) {
 
   $form_element_label = array(
     '#theme' => 'form_element_label',
-    '#required' => !empty($element['#required']) ? $element['#required'] : '',
-    '#title' => !empty($element['#title']) ? $element['#title'] : '',
-    '#title_display' => !empty($element['#title_display']) ? $element['#title_display'] : '',
-    '#id' => !empty($element['#id']) ? $element['#id'] : '',
+    '#required' => isset($element['#required']) ? $element['#required'] : '',
+    '#title' => isset($element['#title']) ? $element['#title'] : '',
+    '#title_display' => isset($element['#title_display']) ? $element['#title_display'] : '',
+    '#id' => isset($element['#id']) ? $element['#id'] : '',
   );
 
   switch ($element['#title_display']) {